I did a few unorthodox things at first, using the existing enclosures and some added panels., creating a kind of pseudo HW.

I then had one ready as planned by specification. It was better than my hacked up version. However, it was not any better than two eight inch, carefully designed enclosures which support the two 8" drivers in each ones own enclosure.

Ultimately, I wound up using the established plans and wishing I had built a 15" enclosure, instead of scaling it down to 8".

It was great, if you just want to "out do" a bought enclosure but it was not as described using a 15" driver. (or several). Physics and such!

I ended up losing the 8" drivers in the end and simply going back to reality.

If you want to move a substantial amount of air - you need to use a large, powerful driver.

The scaling idea was to be able to use a pair of HWs for a smallroom less than 10X12 feet. Is there a better way to scale down the HWs than basically taking the difference of driver size the original design is and using that difference to scale the HWs to accomodate 6.5" drivers?